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Filing Details

Accession Number:: 0001181431-13-029557
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2013-05-21 19:41:22
Reporting Period:: 2013-05-21

Filing Date:: 2013-05-21
Accepted Time:: 2013-05-21 19:41:22
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1131543	Ambit Biosciences Corp	AMBI	Pharmaceutical Preparations (2834)	330909648

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1026764	Standish Fleming	C/O Ambit Biosciences Corporation 11080 Roselle Street San Diego CA 92121		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2013-05-21	24,084	$0.00	24,219	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2013-05-21	53,579	$0.00	77,798	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2013-05-21	102,450	$0.00	180,248	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2013-05-21	298,802	$0.00	479,050	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2013-05-21	223,795	$0.00	702,845	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2013-05-21	263,301	$8.00	966,146	No	4	P	Indirect	See Footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	See Footnote
No	4	C	Indirect	See Footnote
No	4	C	Indirect	See Footnote
No	4	C	Indirect	See Footnote
No	4	C	Indirect	See Footnote
No	4	P	Indirect	See Footnote

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series B Preferred Stock	Disposition	2013-05-21	578,033	$0.00	24,084	$0.00
Common Stock	Series C Preferred Stock	Disposition	2013-05-21	1,285,918	$0.00	53,579	$0.00
Common Stock	Series D Preferred Stock	Disposition	2013-05-21	1,112,781	$0.00	102,450	$0.00
Common Stock	Series D-2 Preferred Stock	Disposition	2013-05-21	7,171,250	$0.00	298,802	$0.00
Common Stock	Series E Preferred Stock	Disposition	2013-05-21	5,371,063	$0.00	223,795	$0.00
Common Stock	Stock Option (right to buy)	Disposition	2013-05-21	7,085	$0.00	7,085	$6.66

Remaning Holdings	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		No	4	C	Indirect
0		No	4	C	Indirect
0		No	4	C	Indirect
0		No	4	C	Indirect
0		No	4	C	Indirect
7,085	2023-05-20	No	4	A	Direct

Footnotes

Upon the closing of the Issuer's initial public offering, every 24 shares of Series B Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date.
The securities are held by Forward Ventures IV, L.P., or Forward IV, Forward Ventures IV B, L.P., or Forward IV B and Forward Ventures IV-C, L.P., or Forward IV-C. The Reporting Person, one of the Issuer's directors, and Dr. Ivor Royston, the managing members of Forward IV Associates, LLC the general partner of Forward IV, Forward IV B and Forward IV-C, and Dr. Stuart Collinson, the key member of Forward IV Associates, LLC, share voting and investment control over the securities held by Forward IV, Forward IV B and Forward IV-C, but disclaim beneficial ownership, except to the extent of their pecuniary interests therein.
Upon the closing of the Issuer's initial public offering, every 24 shares of Series C Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date.
Upon the closing of the Issuer's initial public offering, every 10.86166 shares of Series D Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date. The conversion ratio was incorrectly stated in the Reporting Person's Form 3.
Upon the closing of the Issuer's initial public offering, every 24 shares of Series D-2 Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date.
Upon the closing of the Issuer's initial public offering, every 24 shares of Series E Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date.
One-third of the shares will vest on the first, second and third year anniversaries of the date of grant, such that the stock option is fully vested on May 21, 2016, subject to the optionee's continuous service with the Issuer through such vesting date.
The shares were purchased in a private placement concurrent with the closing of the Issuers' initial public offering.